Last week m-f, I had a web like rash show up on my arms from my biceps to my wrist..was tired but no other symptoms I took otc Benadryl and the itching stopped and the rash slowly went away..by fri then sunday I up with stiff neck didn't think much about it thought I slept wrong or whatever..but instead of getting better tues it was killing me on both sides of my neck and down into shoulders..started on rt side now still hurting more on left side and goes now into my shoulder and shoulder blades...I hate to go to the doctor if the two are totally unrelated but just thought I would ask if this was any type of symptom for anything?